Finding the Fourth Proportional to 12,161,662.32, 18,242,960.04 and 5,430,134.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,161,662.32 : 18,242,960.04 = 5,430,134.64 : x
2. Step 2: Convert to fraction form
   12,161,662.32/18,242,960.04 = 5,430,134.64/x
3. Step 3: Cross multiply
   12,161,662.32x = 18,242,960.04 × 5,430,134.64
4. Step 4: Simplify right side
   12,161,662.32x = 99,061,729,249,339.78
5. Step 5: Solve for x
   x = 99,061,729,249,339.78/12,161,662.32
6. Step 6: Final answer
   x = 8,145,410.28